fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.     int n,l;
  7.     cin >> n >> l;
  8.  
  9.     long long arr [n+1][l+1];
  10.  
  11.     for(int i=1; i<=n; i++)
  12.     {
  13.         for(int j=1; j<=l; j++)
  14.         {
  15.             cin >> arr[i][j];
  16.         }
  17.     }
  18.  
  19.     long long sum = 0;
  20.  
  21.     for(int i=1; i<n; i++)
  22.     {
  23.         for(int j=i+1; j<=n; j++)
  24.         {
  25.             int ai,aj;
  26.             ai = aj = 0;
  27.             while(true)
  28.             {
  29.                 int temp;
  30.                 if(arr[i][ai+1] < arr[j][aj+1])
  31.                 {
  32.                     ai ++;
  33.                     temp = arr[i][ai];
  34.                 }
  35.                 else
  36.                 {
  37.                     aj ++;
  38.                     temp = arr[j][aj];
  39.                 }
  40.                 if(ai + aj == l)
  41.                 {
  42.                     sum += temp;
  43.                     break;
  44.                 }
  45.             }
  46.         }
  47.     }
  48.  
  49.     cout << sum;
  50.  
  51.     return 0;
  52. }
  53.  
Success #stdin #stdout 0s 15232KB
comments (?)
stdin
copy 
3 6
1 2 3 4 5 6
3 4 5 6 7 8
0 0 1 1 2 2
stdout
copy 
8
https://ideone.com/qEZ6Gc
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!